Camera optical lens

ABSTRACT

The present disclosure relates to an optical lens and discloses a camera optical lens. The camera optical lens includes nine lenses, and the nine lenses from an object side to an image side are: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens and an ninth lens. The second lens has a positive refractive power, and the camera optical lens satisfies: −1.80≤f1/f≤−0.70; 2.00≤d15/d16≤12.00; wherein, f denotes a focal length of the camera optical lens, f1 denotes a focal length of the first lens, d15 denotes an on-axis thickness of the eighth lens, and d16 denotes an on-axis distance from an image-side surface of the eighth lens to an object-side surface of the ninth lens. The camera optical lens has good optical performance, and meets the design requirements of wide-angle and ultra-thin.

TECHNICAL FIELD

The present disclosure relates to the field of optical lens, particular,to a camera optical lens suitable for handheld devices, such as smartphones and digital cameras, and imaging devices, such as monitors or PClenses.

BACKGROUND

With the emergence of smart phones in recent years, the demand forminiature camera lens is increasing day by day, but in general thephotosensitive devices of camera lens are nothing more than a chargecoupled device (CCD) or a complementary metal-oxide semiconductor sensor(CMOS sensor), and as the progress of the semiconductor manufacturingtechnology makes the pixel size of the photosensitive devices becomesmaller, plus the current development trend of electronic productstowards better functions and thinner and smaller dimensions, miniaturecamera lens with good imaging quality therefore have become a mainstreamin the market.

In order to obtain better imaging quality, the lens that istraditionally equipped in mobile phone cameras adopts a structure of athree-piece, four-piece, or even five-piece, or six-piece lens. Also,with the development of technology and the increase of the diversedemands of users, and as the pixel area of photosensitive devices isbecoming smaller and smaller and the requirement of the system on theimaging quality is improving constantly, a nine-piece lens structuregradually appears in lens designs. The present nine-piece lens structuregenerally has good optical performance, however an optical focal length,lens spacing, a lens shape thereof are still arranged unreasonably, sothat the nine-piece lens structure cannot meet a design requirements ofultra-thin and wide-angle in the case when the lens structure remainsgood optical characteristics.

SUMMARY

Some embodiments of this disclosure provide a camera optical lens,comprising nine lenses, the nine lenses from an object side to an imageside being: a first lens with a negative refractive power; a second lenswith a positive refractive power; a third lens with a negativerefractive power; a fourth lens with a positive refractive power; afifth lens with a negative refractive power; a sixth lens with anegative refractive power; a seventh lens with a positive refractivepower; an eighth lens with a positive refractive power; and an ninthlens with a negative refractive power; wherein the camera optical lenssatisfies following conditions: −1.80≤f1/f≤−0.70; 2.00≤d15/d16≤12.00;where, f denotes a focal length of the camera optical lens; f1 denotes afocal length of the first lens; d15 denotes an on-axis thickness of theeighth lens; and d16 denotes an on-axis distance from an image-sidesurface of the eighth lens to an object-side surface of the ninth lens.

As an improvement, the camera optical lens further satisfies followingconditions: −3.50≤R17/R18≤−1.50; where R17 denotes a central curvatureradius of an object-side surface of the ninth lens; R18 denotes acentral curvature radius of an image-side surface of the ninth lens.

As an improvement, the camera optical lens further satisfies followingconditions: 0.56≤(R1+R2)/(R1−R2)≤5.43; 0.01≤d1/TTL≤0.06; where, R1denotes a central curvature radius of an object-side surface of thefirst lens; R2 denotes a central curvature radius of an image-sidesurface of the first lens; d1 denotes an on-axis thickness of the firstlens; TTL denotes a total track length of the camera optical lens.

As an improvement, the camera optical lens further satisfies followingconditions: 0.24≤f2/f≤0.91; −2.19≤(R3+R4)/(R3−R4)≤−0.48;0.03≤d3/TTL≤0.16; where f2 denotes a focal length of the second lens; R3denotes a central curvature radius of an object-side surface of thesecond lens; R4 denotes a central curvature radius of an image-sidesurface of the second lens; d3 denotes an on-axis thickness of thesecond lens; TTL denotes a total track length of the camera opticallens.

As an improvement, the camera optical lens further satisfies followingconditions: −5.98≤f3/f≤−1.44; 1.43≤(R5+R6)/(R5−R6)≤5.57;0.01≤d5/TTL≤0.04; where f3 denotes a focal length of the third lens; R5denotes a central curvature radius of an object-side surface of thethird lens; R6 denotes a central curvature radius of an image-sidesurface of the third lens; d5 denotes an on-axis thickness of the thirdlens; TTL denotes a total track length of the camera optical lens.

As an improvement, the camera optical lens further satisfies followingconditions: 1.06≤f4/f≤5.31; 0.05≤(R7+R8)/(R7−R8)≤3.87; 0.01≤d7/TTL≤0.08;where f4 denotes a focal length of the fourth lens; R7 denotes a centralcurvature radius of an object-side surface of the fourth lens; R8denotes a central curvature radius of an image-side surface of thefourth lens; d7 denotes an on-axis thickness of the fourth lens; TTLdenotes a total track length of the camera optical lens.

As an improvement, the camera optical lens further satisfies followingconditions: −5.01≤f5/f≤−0.97; −0.43≤(R9+R10)/(R9−R10)≤0.31;0.01≤d9/TTL≤0.07; where f5 denotes a focal length of the fifth lens; R9denotes a central curvature radius of an object-side surface of thefifth lens; R10 denotes a central curvature radius of an image-sidesurface of the fifth lens; d9 denotes an on-axis thickness of the fifthlens; TTL denotes a total track length of the camera optical lens.

As an improvement, the camera optical lens further satisfies followingconditions: −63.50≤f6/f≤−17.13; 1.59≤(R11+R12)/(R11−R12)≤11.32;0.05≤d11/TTL≤0.18; where f6 denotes a focal length of the sixth lens;R11 denotes a central curvature radius of an object-side surface of thesixth lens; R12 denotes a central curvature radius of an image-sidesurface of the sixth lens; d11 denotes an on-axis thickness of the sixthlens; TTL denotes a total track length of the camera optical lens.

As an improvement, the camera optical lens further satisfies followingconditions: 0.48≤f7/f≤2.03; −3.44≤(R13+R14)/(R13-R14)≤−0.96;0.02≤d13/TTL≤0.09; where f7 denotes a focal length of the seventh lens;R13 denotes a central curvature radius of an object-side surface of theseventh lens; R14 denotes a central curvature radius of an image-sidesurface of the seventh lens; d13 denotes an on-axis thickness of theseventh lens; TTL denotes a total track length of the camera opticallens.

As an improvement, the camera optical lens further satisfies followingconditions: 0.46≤f8/f≤7.90; −6.50≤(R15+R16)/(R15-R16)≤−0.31;0.06≤d15/TTL≤0.23; where f8 denotes a focal length of the eighth lens;R15 denotes a central curvature radius of an object-side surface of theeighth lens; R16 denotes a central curvature radius of an image-sidesurface of the eighth lens; TTL denotes a total track length of thecamera optical lens.

As an improvement, the camera optical lens further satisfies followingconditions: −1.60≤f9/f≤−0.34; 0.11≤(R17+R18)/(R17-R18)≤0.77;0.01≤d17/TTL≤0.08; where f9 denotes a focal length of the ninth lens;R17 denotes a central curvature radius of an object-side surface of theninth lens; R18 denotes a central curvature radius of an image-sidesurface of the ninth lens; d17 denotes an on-axis thickness of the ninthlens; TTL denotes a total track length of the camera optical lens.

BRIEF DESCRIPTION OF DRAWINGS

In order to make more clearly technical solutions of embodiments in thepresent disclosure, accompanying drawings, which are used in thedescription of the embodiments, will be described briefly in thefollowing. Obviously, the accompanying drawings in the followingdescription are only some examples of the present disclosure. Thoseskilled in the art, without creative work, may obtain other drawingsbased on these drawings.

FIG. 1 is a schematic diagram of a structure of a camera optical lensaccording to a first embodiment of the present disclosure.

FIG. 2 is a schematic diagram of a longitudinal aberration of the cameraoptical lens shown in FIG. 1.

FIG. 3 is a schematic diagram of a lateral color of the camera opticallens shown in FIG. 1.

FIG. 4 is a schematic diagram of a field curvature and a distortion ofthe camera optical lens shown in FIG. 1.

FIG. 5 is a schematic diagram of a structure of a camera optical lensaccording to a second embodiment of the present disclosure.

FIG. 6 is a schematic diagram of a longitudinal aberration of the cameraoptical lens shown in FIG. 5.

FIG. 7 is a schematic diagram of a lateral color of the camera opticallens shown in FIG. 5.

FIG. 8 is a schematic diagram of a field curvature and a distortion ofthe camera optical lens shown in FIG. 5.

FIG. 9 is a schematic diagram of a structure of a camera optical lensaccording to a third embodiment of the present disclosure.

FIG. 10 is a schematic diagram of a longitudinal aberration of thecamera optical lens shown in FIG. 9.

FIG. 11 is a schematic diagram of a lateral color of the camera opticallens shown in FIG. 9.

FIG. 12 is a schematic diagram of a field curvature and a distortion ofthe camera optical lens shown in FIG. 9.

DETAILED DESCRIPTION OF EMBODIMENTS

To make the objects, technical solutions, and advantages of the presentdisclosure clearer, embodiments of the present disclosure are describedin detail with reference to accompanying drawings in the following. Aperson of ordinary skill in the art can understand that, in theembodiments of the present disclosure, many technical details areprovided to make readers better understand the present disclosure.However, even without these technical details and any changes andmodifications based on the following embodiments, technical solutionsrequired to be protected by the present disclosure can be implemented.

Frist Embodiment

Referring to the accompanying drawings, the present disclosure providesa camera optical lens 10. FIG. 1 shows the camera optical lens 10 of thefirst embodiment of the present disclosure, and the camera optical lens10 includes nine lenses. Specifically, the camera optical lens 10includes, from an object side to an image side: an aperture S1, a firstlens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifthlens L5, a sixth lens L6, a seventh lens L7, an eighth lens L8 and anninth lens L9. An optical element, such as an optical filter GF, may bearranged between the ninth lens L9 and an image surface S1.

In this embodiment, the first lens L1 has a negative refractive power,the second lens L2 has a positive refractive power, the third lens L3has a negative refractive power, the fourth lens L4 has a positiverefractive power, the fifth lens L5 has a negative refractive power, thesixth lens L6 has a negative refractive power, the seventh lens L7 has apositive refractive power, the eighth lens L8 has a positive refractivepower, and the ninth lens L9 has a negative refractive power. In thisembodiment, the second lens L2 has a positive refractive power,conducing to improve the performance of the optical system.

In this embodiment, the first lens L1, the second lens L2, the thirdlens L3, the fourth lens L4, the fifth lens L5, the sixth lens L6, theseventh lens L7, the eighth lens L8, and the ninth lens L9 are all madeof plastic material. In other embodiments, the lenses may also be madeof other materials.

In this embodiment, a focal length of the camera optical lens 10 isdefined as f, and a focal length of the first lens L1 is defined as f1.The camera optical lens 10 satisfies a condition of −1.80≤f1/f≤−0.70,which specifies a ratio between the focal length f1 of the first lens L1and the focal length f of the camera optical lens 10, effectivelybalancing spherical aberration and field curvature amount of the cameraoptical lens 10 in this range.

An on-axis thickness of the eighth lens L8 is defined as d15, an on-axisdistance from an image-side surface of the eighth lens L8 to anobject-side surface of the ninth lens L9 is defined as d16, and thecamera optical lens 10 further satisfies a condition of2.00≤d15/d16≤12.00, which specifies a ratio between the on-axisthickness d15 of the eighth lens L8 and an on-axis distance d16 from animage-side surface of the eighth lens L8 to an object-side surface ofthe ninth lens L9, conducing to compress the total track length andachieve an ultra-thin effect in this range.

A central curvature radius of an object-side surface of the ninth lensL9 is defined as R17, a central curvature radius of an image-sidesurface of the ninth lens L9 is defined as R18 and the camera opticallens satisfies a condition of −3.50≤R17/R18≤−1.50, which specifies ashape of the ninth lens L9. Within this range, the deflection of lightpassing through the lens can be eased and aberrations can be effectivelyreduced.

In this embodiment, the object-side surface of the first lens L1 isconvex in a paraxial region, and the image-side surface of the firstlens L1 is concave in the paraxial region.

A central curvature radius of the object-side surface of the first lensL1 is defined as R1, a central curvature radius of the image-sidesurface of the first lens L1 is defined as R2, and the camera opticallens satisfies a condition of 0.56≤(R1+R2)/(R1−R2)≤5.43, whichreasonably controls a shape of the first lens L1, so that the first lensL1 can effectively correct system spherical aberration. Preferably, thecamera optical lens 10 satisfies a condition of0.90≤(R1+R2)/(R1−R2)≤4.35.

An on-axis thickness of the first lens L1 is defined as d1, a totaltrack length of the camera optical lens 10 is defined as TTL, and thecamera optical lens 10 further satisfies a condition of0.01≤d1/TTL≤0.06, conducing to realize an ultra-thin effect in thisrange. Preferably, the camera optical lens 10 further satisfies acondition of 0.01≤d1/TTL≤0.05.

In this embodiment, an object-side surface of the second lens L2 isconvex in the paraxial region, and an image-side surface of the secondlens L2 is concave in the paraxial region.

The focal length of the camera optical lens 10 is defined as f, a focallength of the second lens L2 is defined as f2, and the camera opticallens 10 further satisfies a condition of 0.24≤f2/f≤0.91. In this way, apositive refractive power of the second lens L2 is controlled within areasonable range, so that it is beneficial to correct the aberration ofthe optical system. Preferably, the camera optical lens 10 furthersatisfies a condition of 0.39≤f2/f≤0.73.

A central curvature radius of the object-side surface of the second lensL2 is defined as R3, a central curvature radius of the image-sidesurface of the second lens L2 is defined as R4, and the camera opticallens 10 further satisfies a condition of −2.19≤(R3+R4)/(R3−R4)≤−0.48,which specifies a shape of the second lens L2. Within this range, adevelopment towards ultra-thin and wide-angle lenses would facilitatecorrecting the problem of an on-axis aberration. Preferably, the cameraoptical lens 10 further satisfies a condition of−1.37≤(R3+R4)/(R3−R4)≤−0.60.

A total track length of the camera optical lens 10 is defined as TTL, anon-axis thickness of the second lens L2 is defined as d3, and the cameraoptical lens 10 satisfies a condition of 0.03≤d3/TTL≤0.16. Within thisrange, it is beneficial to achieve ultra-thin lenses. Preferably, thecamera optical lens 10 further satisfies a condition of0.05≤d3/TTL≤0.13.

In an embodiment, an object-side surface of the third lens L3 is convexin the paraxial region, and an image-side surface of the third lens L3is concave in the paraxial region.

The focal length of the camera optical lens 10 is defined as f, a focallength of the third lens L3 is defined as f3, and the camera opticallens 10 further satisfies a condition of −5.98≤f3/f≤−1.44. In this way,a refractive power is distributed appropriately, so that the cameraoptical lens can attain a better imaging quality and a lowersensitivity. Preferably, the camera optical lens 10 further satisfies acondition of −3.74≤f3/f≤−1.80.

A central curvature radius of the object-side surface of the third lensL3 is defined as R5, a central curvature radius of the image-sidesurface of the third lens L3 is defined as R6, and the camera opticallens 10 further satisfies a condition of 1.43≤(R5+R6)/(R5−R6)≤5.57,which specifies a shape of the third lens L3. Within this range, thedeflection of light passing through the lens can be eased andaberrations can be effectively reduced. Preferably, the camera opticallens 10 further satisfies a condition of 2.30≤(R5+R6)/(R5−R6)≤4.45.

The total track length of the camera optical lens 10 is defined as TTL,an on-axis thickness of the third lens L3 is defined as d5, and thecamera optical lens 10 further satisfies a condition of0.01≤d5/TTL≤0.04. This can facilitate achieving ultra-thin lenses.Preferably, the camera optical lens 10 further satisfies a condition of0.01≤d5/TTL≤0.03.

In an embodiment, an object-side surface of the fourth lens L4 isconcave in the paraxial region, and an image-side surface of the fourthlens L4 is convex in the paraxial region.

The focal length of the camera optical lens 10 is defined as f, a focallength of the fourth lens L4 is defined as f4, and the camera opticallens 10 further satisfies a condition of 1.06≤f4/f≤5.31. In this way, arefractive power is distributed appropriately, so that the cameraoptical lens can attain a better imaging quality and a lowersensitivity. Preferably, the camera optical lens 10 further satisfies acondition of 1.70≤f4/f≤4.25.

A central curvature radius of an object-side surface of the fourth lensL4 is defined as R7, a central curvature radius of an image-side surfaceof the fourth lens L4 is defined as R8, and the camera optical lens 10further satisfies a condition of 0.05≤(R7+R8)/(R7−R8)≤3.87, whichspecifies a shape of the fourth lens L4. Within this range, adevelopment towards ultra-thin and wide-angle lens would facilitatecorrecting problems such as an off-axis aberration. Preferably, thecamera optical lens 10 further satisfies a condition of0.08≤(R7+R8)/(R7−R8)≤3.09.

The total track length of the camera optical lens 10 is defined as TTL,an on-axis thickness of the fourth lens L4 is defined as d7, and thecamera optical lens 10 further satisfies a condition of0.01≤d7/TTL≤0.08. Within this range, this can facilitate achievingultra-thin lenses. Preferably, the camera optical lens 10 furthersatisfies a condition of 0.02≤d7/TTL≤0.06.

In an embodiment, an object-side surface of the fifth lens L5 is concavein the paraxial region, and an image-side surface of the fifth lens L5is concave in the paraxial region.

The focal length of the camera optical lens 10 is defined as f, a focallength of the fifth lens L5 is defined as f5, and the camera opticallens 10 further satisfies a condition of −5.01≤f5/f≤−0.97, which caneffectively make a light angle of the camera optical lens 10 gentle andreduce a tolerance sensitivity. Preferably, the camera optical lens 10further satisfies a condition of −3.13≤f5/f≤−1.22.

A central curvature radius of the object-side surface of the fifth lensL5 is defined as R9, a central curvature radius of the image-sidesurface of the fifth lens L5 is defined as R10, and the camera opticallens 10 further satisfies a condition of −0.43≤(R9+R10)/(R9−R10)≤0.31,which specifies a shape of the fifth lens L5. Within this range, adevelopment towards ultra-thin and wide-angle lenses can facilitatecorrecting a problem of the off-axis aberration. Preferably, the cameraoptical lens 10 further satisfies a condition of−0.27≤(R9+R10)/(R9−R10)≤0.25.

The total track length of the camera optical lens 10 is defined as TTL,an on-axis thickness of the fifth lens L5 is defined as d9, and thecamera optical lens 10 further satisfies a condition of0.01≤d9/TTL≤0.07. Within this range, this can facilitate achievingultra-thin lenses. Preferably, the camera optical lens 10 furthersatisfies a condition of 0.02≤d9/TTL≤0.05.

In an embodiment, an object-side surface of the sixth lens L6 is convexin the paraxial region, and an image-side surface of the sixth lens L6is concave in the paraxial region.

A focal length of the camera optical lens 10 is defined as f, a focallength of the sixth lens L6 is defined as f6, and the camera opticallens satisfies a condition of −63.50≤f6/f≤−17.13. In this way, arefractive power is distributed appropriately, so that the system canattain a better imaging quality and a lower sensitivity. Preferably, thecamera optical lens 10 further satisfies a condition of−39.69≤f6/f≤−21.42.

A central curvature radius of the object-side surface of the sixth lensL6 is defined as R11, a central curvature radius of the image-sidesurface of the sixth lens L6 is defined as R12, and the camera opticallens 10 further satisfies a condition of 1.59≤(R11+R12)/(R11−R12)≤11.32,which specifies a shape of the sixth lens L6. Within this range, adevelopment towards ultra-thin and wide-angle lenses would facilitatecorrecting a problem like the off-axis aberration. Preferably, thecamera optical lens 10 further satisfies a condition of2.54≤(R11+R12)/(R11−R12)≤9.06.

The total track length of the camera optical lens 10 is defined as TTL,an on-axis thickness of the sixth lens L6 is defined as d11, and thecamera optical lens 10 further satisfies a condition of0.05≤d11/TTL≤0.18. Within this range, this can facilitate achievingultra-thin lenses. Preferably, the camera optical lens 10 furthersatisfies a condition of 0.08≤d11/TTL≤0.14.

In an embodiment, an object-side surface of the seventh lens L7 isconvex in the paraxial region, and an image-side surface of the seventhlens L7 is concave in the paraxial region.

The focal length of the camera optical lens 10 is defined as f, a focallength of seventh lens L7 is defined as f7, and the camera optical lens10 further satisfies a condition of 0.48≤f7/f≤2.03. Within this range, arefractive power is distributed appropriately, so that the system canattain the better imaging quality and lower sensitivity. Preferably, thecamera optical lens 10 further satisfies a condition of 0.76≤f7/f≤1.62.

A central curvature radius of the object-side surface of the seventhlens L7 is defined as R13, a central curvature radius of the image-sidesurface of the seventh lens L7 is defined as R14, and the camera opticallens 10 further satisfies a condition of−3.44≤(R13+R14)/(R13-R14)≤−0.96, which specifies a shape of the seventhlens L7. Within this specified range, the deflection of light passingthrough the lens can be eased and aberrations can be effectivelyreduced. Preferably, the camera optical lens 10 further satisfies acondition of −2.15≤(R13+R14)/(R13-R14)≤−1.20.

The total track length of the camera optical lens 10 is defined as TTL,an on-axis thickness of the seventh lens L7 is defined as d13, and thecamera optical lens 10 further satisfies a condition of0.02≤d13/TTL≤0.09. Within this range, it is beneficial to achieveultra-thin lenses. Preferably, the camera optical lens 10 furthersatisfies a condition of 0.04≤d13/TTL≤0.07.

In an embodiment, an object-side surface of the eighth lens L8 is convexin the paraxial region, and an image-side surface of eighth lens L8 isconcave in the paraxial region.

The focal length of the camera optical lens 10 is defined as f, a focallength of eighth lens L8 is defined as f8, and the camera optical lens10 further satisfies a condition of 0.46≤f8/f≤7.90. In this way, arefractive power is distributed appropriately, so that the cameraoptical lens can attain a better imaging quality and a lowersensitivity. Preferably, the camera optical lens 10 further satisfies acondition of 0.74≤f8/f≤6.32.

A central curvature radius of the object-side surface of the eighth lensL8 is defined as R15, a central curvature radius of the image-sidesurface of the sixth lens L8 is defined as R16, and the camera opticallens 10 further satisfies a condition of−6.50≤(R15+R16)/(R15-R16)≤−0.31, which specifies a shape of the eighthlens L8. Within this range, a development towards ultra-thin andwide-angle lenses would facilitate correcting a problem like theoff-axis aberration. Preferably, the camera optical lens 10 furthersatisfies a condition of −4.06≤(R15+R16)/(R15-R16)≤−0.39.

The total track length of the camera optical lens 10 is defined as TTL,an on-axis thickness of the eighth lens L8 is defined as d15, and thecamera optical lens 10 further satisfies a condition of0.06≤d15/TTL≤0.23. Within this range, this can facilitate achievingultra-thin lenses. Preferably, the camera optical lens 10 furthersatisfies a condition of 0.09≤d15/TTL≤0.18.

In an embodiment, an object-side surface of the ninth lens L9 is concavein the paraxial region, and an image-side surface of ninth lens L9 isconcave in the paraxial region.

The focal length of the camera optical lens 10 is defined as f, a focallength of the ninth lens L9 is defined as f9, and the camera opticallens 10 further satisfies a condition of −1.60≤f9/f≤−0.34. In this way,a refractive power is distributed appropriately, so that the cameraoptical lens can attain a better imaging quality and a lowersensitivity. Preferably, the camera optical lens 10 further satisfies acondition of −1.00≤f9/f≤−0.43.

A central curvature radius of the object-side surface of the ninth lensL9 is defined as R17, a central curvature radius of the image-sidesurface of the ninth lens L9 is defined as R18, and the camera opticallens 10 further satisfies a condition of 0.11≤(R17+R18)/(R17-R18)≤0.77,which specifies a shape of the ninth lens L9. Within this range, adevelopment towards ultra-thin and wide-angle lenses would facilitatecorrecting a problem like the off-axis aberration. Preferably, thecamera optical lens 10 further satisfies a condition of0.17≤(R17+R18)/(R17-R18)≤0.62.

The total track length of the camera optical lens 10 is defined as TTL,an on-axis thickness of the ninth lens L9 is defined as d17, and thecamera optical lens 10 further satisfies a condition of0.01≤d17/TTL≤0.08. Within this range, this can facilitate achievingultra-thin lenses. Preferably, the camera optical lens 10 furthersatisfies a condition of 0.02≤d17/TTL≤0.06.

In an embodiment, an image height of the camera optical lens 10 isdefined as IH, the total track length of the camera optical lens 10 isdefined as TTL, and the camera optical lens 10 further satisfies acondition of TTL/IH≤1.62, thus facilitating to achieve ultra-thinlenses.

In an embodiment, an FOV (field of view) of the camera optical lens 10is greater than or equal to 81.00°, thereby achieving a wide-angle and abetter imaging performance of the camera optical lens 10.

It can be understood that, in other embodiments, for the first lens L1,the second lens L2, the third lens L3, the fourth lens L4, the fifthlens L5, the sixth lens L6, the seventh lens L7, the eighth lens L8, andthe ninth lens L9, surface profiles of an object-side surface and animage-side surface respectively may be configured in other convex orconcave arrangement.

When the above condition is satisfied, the camera optical lens 10 canmeet the design requirements of wide-angle and ultra-thin in the casethat a good optical performance is maintained. According tocharacteristics of the camera optical lens 10, the camera optical lens10 is particularly suitable for mobile phone camera lens components andWEB camera lenses composed of camera elements such as CCD and CMOS withhigh pixel.

In the following, examples will be used to describe the camera opticallens 10 of the present disclosure. The symbols recorded in each examplewill be described as follows. The focal length, on-axis distance,central curvature radius, on-axis thickness, inflexion point position,and arrest point position are all in units of mm.

TTL refers to a total track length (an on-axis distance from anobject-side surface of the first lens L1 to an image surface S1) inunits of mm.

Aperture value FNO refers to a ratio of an effective focal length of thecamera optical lens to an entrance pupil diameter.

Preferably, inflexion points and/or arrest points can be arranged on theobject-side surface and/or the image-side surface of the lens, so as tosatisfy the demand for high quality imaging. The description below maybe referred for specific implementations.

The design data of the camera optical lens 10 in the first embodiment ofthe present disclosure are shown in Table 1 and Table 2.

TABLE 1 R d nd vd S1 ∞ d0= −0.219 R1 4.646 d1= 0.243 nd1 1.5444 v1 55.82R2 2.636 d2= 0.028 R3 2.074 d3= 0.826 nd2 1.5444 v2 55.82 R4 45.192 d4=0.069 R5 8.618 d5= 0.200 nd3 1.6359 v3 23.82 R6 4.364 d6= 0.613 R7−16.188 d7= 0.442 nd4 1.5444 v4 55.82 R8 −7.141 d8= 0.040 R9 −16.636 d9=0.204 nd5 1.6153 v5 25.94 R10 25.787 d10= 0.174 R11 83.149 d11= 1.029nd6 1.5444 v6 55.82 R12 43.293 d12= 0.338 R13 3.464 d13= 0.531 nd71.5346 v7 55.69 R14 17.751 d14= 1.323 R15 9.543 d15= 0.981 nd8 1.5661 v837.71 R16 18.035 d16= 0.490 R17 −7.297 d17= 0.200 nd9 1.5450 v9 55.81R18 4.685 d18= 0.104 R19 ∞ d19= 0.210 ndg 1.5168 vg 64.17 R20 ∞ d20=0.610

In the table, meanings of various symbols will be described as follows:

S1: aperture;

R: curvature radius at a center of an optical surface;

R1: central curvature radius of the object-side surface of the firstlens L1;

R2: central curvature radius of the image-side surface of the first lensL1;

R3: central curvature radius of the object-side surface of the secondlens L2;

R4: central curvature radius of the image-side surface of the secondlens L2;

R5: central curvature radius of the object-side surface of the thirdlens L3;

R6: central curvature radius of the image-side surface of the third lensL3;

R7: central curvature radius of the object-side surface of the fourthlens L4;

R8: central curvature radius of the image-side surface of the fourthlens L4;

R9: central curvature radius of the object-side surface of the fifthlens L5;

R10: central curvature radius of the image-side surface of the fifthlens L5;

R11: central curvature radius of the object-side surface of the sixthlens L6;

R12: central curvature radius of the image-side surface of the sixthlens L6;

R13: central curvature radius of the object-side surface of the seventhlens L7;

R14: central curvature radius of the image-side surface of the seventhlens L7;

R15: central curvature radius of the object-side surface of the eighthlens L8;

R16: central curvature radius of the image-side surface of the eighthlens L8;

R17: central curvature radius of the object-side surface of the ninthlens L9;

R18: central curvature radius of the image-side surface of the ninthlens L9;

R19: central curvature radius of an object-side surface of the opticalfilter GF;

R20: central curvature radius of an image-side surface of the opticalfilter GF;

d: on-axis thickness of a lens, or an on-axis distance between lenses;

d0: on-axis distance from the aperture S1 to the object-side surface ofthe first lens L1;

d1: on-axis thickness of the first lens L1;

d2: on-axis distance from the image-side surface of the first lens L1 tothe object-side surface of the second lens L2;

d3: on-axis thickness of the second lens L2;

d4: on-axis distance from the image-side surface of the second lens L2to the object-side surface of the third lens L3;

d5: on-axis thickness of the third lens L3;

d6: on-axis distance from the image-side surface of the third lens L3 tothe object-side surface of the fourth lens L4;

d7: on-axis thickness of the fourth lens L4;

d8: on-axis distance from the image-side surface of the fourth lens L4to the object-side surface of the fifth lens L5;

d9: on-axis thickness of the fifth lens L5;

d10: on-axis distance from the image-side surface of the fifth lens L5to the object-side surface of the sixth lens L6;

d11: on-axis thickness of the sixth lens L6;

d12: on-axis distance from the image-side surface of the sixth lens L6to the object-side surface of the seventh lens L7;

d13: on-axis thickness of the seventh lens L7;

d14: on-axis distance from the image-side surface of the seventh lens L7to the object-side surface of the eighth lens L8;

d15: on-axis thickness of the seventh lens L8;

d16: on-axis distance from the image-side surface of the eighth lens L8to the object-side surface of the ninth lens L9;

d17: on-axis thickness of the ninth lens L9;

d18: on-axis distance from the image-side surface of the ninth lens L9to the object-side surface of the optical filter GF;

d19: on-axis thickness of the optical filter GF;

d20: on-axis distance from the image-side surface of the optical filterGF to the image surface S1;

nd: refractive index of a d line;

nd1: refractive index of the d line of the first lens L1;

nd2: refractive index of the d line of the second lens L2;

nd3: refractive index of the d line of the third lens L3;

nd4: refractive index of the d line of the fourth lens L4;

nd5: refractive index of the d line of the fifth lens L5;

nd6: refractive index of the d line of the sixth lens L6;

nd7: refractive index of the d line of the seventh lens L7;

nd8: refractive index of the d line of the eighth lens L8;

nd9: refractive index of the d line of the ninth lens L9;

ndg: refractive index of the d line of the optical filter GF;

vd: abbe number;

v1: abbe number of the first lens L1;

v2: abbe number of the second lens L2;

v3: abbe number of the third lens L3;

v4: abbe number of the fourth lens L4;

v5: abbe number of the fifth lens L5;

v6: abbe number of the sixth lens L6;

v7: abbe number of the seventh lens L7;

v8: abbe number of the eighth lens L8;

v9: abbe number of the ninth lens L9;

vg: abbe number of the optical filter GF.

Table 2 shows aspherical surface data of the camera optical lens 10 inthe first embodiment of the present disclosure.

TABLE 2 Conic coefficient Aspheric surface coefficients k A4 A6 A8 A10A12 R1 −1.3966E+00 −9.3096E−03 9.2321E−03 −7.8166E−03 4.0479E−03−9.9530E−04 R2 −4.5429E+00 −1.0030E−01 1.4298E−01 −1.6290E−01 1.3919E−01−8.4281E−02 R3  3.0481E−01 −1.2437E−01 1.3510E−01 −1.5540E−01 1.3514E−01−8.5137E−02 R4 −3.3873E+02  9.0115E−03 −8.6152E−03   9.1337E−03−1.0615E−02   8.6508E−03 R5 −7.7036E+01  2.2796E−03 −5.3514E−03  1.2298E−02 −1.1791E−02   7.8187E−03 R6  3.0216E+00 −2.5294E−021.2327E−02 −2.5268E−03 −1.5536E−03   2.3347E−03 R7  8.1094E+01−1.7684E−02 3.5366E−03 −1.3541E−02 1.6279E−02 −1.3557E−02 R8  1.2961E+01−1.9686E−02 1.5475E−02 −2.7923E−02 2.8859E−02 −2.0011E−02 R9  7.1118E+01−2.9184E−02 7.6391E−03 −9.7531E−03 1.1877E−02 −9.4153E−03 R10−7.5234E+01 −2.4570E−02 −5.9422E−03   1.1523E−02 −9.0071E−03  4.3613E−03 R11  2.0000E+02 −1.5549E−02 −2.2914E−04   2.8538E−03−2.2171E−03   9.4445E−04 R12  9.9000E+01 −4.1222E−02 8.9755E−03−2.4090E−03 6.1263E−04 −1.2983E−04 R13 −2.1271E+00 −1.2167E−023.6721E−03 −1.3867E−03 2.6293E−04 −5.9498E−05 R14 −1.2645E+02 1.2567E−02 −1.4633E−03   2.3209E−04 −3.8603E−04   1.4020E−04 R15−3.4788E+00 −1.8564E−02 −1.3611E−03   5.0378E−04 −5.1917E−05 −4.9801E−06 R16 −5.0801E+00 −8.4650E−03 −4.2939E−03   1.3451E−03−2.4514E−04   2.8179E−05 R17 −3.6481E+00 −2.3655E−02 2.4541E−03−9.9854E−05 3.2131E−06 −1.4030E−07 R18 −1.6413E+00 −2.4412E−023.2201E−03 −2.6104E−04 1.3328E−05 −4.1545E−07 Conic coefficient Asphericsurface coefficients k A14 A16 A18 A20 R1 −1.3966E+00 −8.2513E−05 1.2748E−04 −3.2820E−05 2.9520E−06 R2 −4.5429E+00 3.4731E−02 −9.2005E−03  1.4064E−03 −9.3966E−05  R3  3.0481E−01 3.6720E−02 −1.0255E−02  1.6645E−03 −1.1985E−04  R4 −3.3873E+02 −4.4535E−03  1.4055E−03−2.5379E−04 2.0255E−05 R5 −7.7036E+01 −3.3192E−03  8.5775E−04−1.2553E−04 8.1914E−06 R6  3.0216E+00 −1.4211E−03  4.9003E−04−9.2315E−05 7.3432E−06 R7  8.1094E+01 7.6177E−03 −2.6657E−03  5.2874E−04 −4.4957E−05  R8  1.2961E+01 9.5338E−03 −2.9161E−03  5.0875E−04 −3.7809E−05  R9  7.1118E+01 4.8882E−03 −1.5773E−03  2.8015E−04 −2.0517E−05  R10 −7.5234E+01 −1.3141E−03  2.3706E−04−2.3099E−05 9.3083E−07 R11  2.0000E+02 −2.2705E−04  3.1376E−05−2.3573E−06 7.5368E−08 R12  9.9000E+01 1.8918E−05 −1.6053E−06  7.6629E−08 −1.8626E−09  R13 −2.1271E+00 1.4740E−05 −2.3678E−06  1.9323E−07 −6.0886E−09  R14 −1.2645E+02 −2.4395E−05  2.3054E−06−1.1345E−07 2.2769E−09 R15 −3.4788E+00 1.2280E−06 −2.5444E−08 −6.5673E−09 3.3689E−10 R16 −5.0801E+00 −2.0106E−06  8.8127E−08−2.2343E−09 2.5718E−11 R17 −3.6481E+00 2.7723E−10 3.6163E−10 −1.4625E−111.7727E−13 R18 −1.6413E+00 5.4153E−09 8.9599E−11 −3.8415E−12 3.4379E−14

Here, K is a conic coefficient, and A4, A6, A8, A10, A12, A14, A16, A18and A20 are aspheric surface coefficients.

y=(x ² /R)/{1+[1−(k+1)(x ² /R ²)]^(1/2) }+A4x ⁴ +A6x ⁶ +A8x ⁸ +A10x ¹⁰+A12x ¹² +A14x ¹⁴ +A16x ¹⁶ +A18x ¹⁸ +A20x ²°  (1)

Here, x denotes a vertical distance between a point on an aspheric curveand an optical axis, and y denotes a depth of a aspheric surface (i.e. avertical distance between a point on an aspheric surface that is x awayfrom the optical axis, and a tangent plane tangent to an vertex of theoptical axis on the aspheric surface).

For convenience, an aspheric surface of each lens surface uses theaspheric surfaces shown in the above formula (1). However, the presentdisclosure is not limited to the aspherical polynomials form shown inthe formula (1).

Table 3 and Table 4 show design data of inflexion points and arrestpoints of the camera optical lens 10 according to the first embodimentof the present disclosure. P1R1 and P1R2 respectively represent theobject-side surface and the image-side surface of the first lens L1,P2R1 and P2R2 respectively represent the object-side surface and theimage-side surface of the second lens L2, P3R1 and P3R2 respectivelyrepresent the object-side surface and the image-side surface of thethird lens L3, P4R1 and P4R2 respectively represent the object-sidesurface and the image-side surface of the fourth lens L4, P5R1 and P5R2respectively represent the object-side surface and the image-sidesurface of the fifth lens L5, P6R1 and P6R2 respectively represent theobject-side surface and the image-side surface of the sixth lens L6,P7R1 and P7R2 respectively represent the object-side surface and theimage-side surface of the seventh lens L7. P8R1 and P8R2 respectivelyrepresent the object-side surface and the image-side surface of theeighth lens L8, P9R1 and P9R2 respectively represent the object-sidesurface and the image-side surface of the ninth lens L9. The data in thecolumn named “inflexion point position” refer to vertical distances frominflexion points arranged on each lens surface to the optic axis of thecamera optical lens 10. The data in the column named “arrest pointposition” refer to vertical distances from arrest points arranged oneach lens surface to the optical axis of the camera optical lens 10.

TABLE 3 Number(s) of Inflexion Inflexion Inflexion inflexion point pointpoint points position 1 position 2 position 3 P1R1 0 / / / P1R2 0 / / /P2R1 0 / / / P2R2 2 1.195 1.695 / P3R1 0 / / / P3R2 0 / / / P4R1 0 / / /P4R2 2 1.625 1.795 / P5R1 2 1.755 1.855 / P5R2 2 0.355 1.805 / P6R1 20.255 1.725 / P6R2 2 0.225 2.295 / P7R1 1 1.405 / / P7R2 2 1.555 3.075 /P8R1 2 0.665 3.225 / P8R2 2 0.625 3.305 / P9R1 2 2.585 4.735 / P9R2 30.985 4.895 5.135

TABLE 4 Number(s) of Arrest point Arrest point arrest points position 1position 2 P1R1 0 / / P1R2 0 / / P2R1 0 / / P2R2 1 1.565 / P3R1 0 / /P3R2 0 / / P4R1 0 / / P4R2 0 / / P5R1 0 / / P5R2 1 0.605 / P6R1 2 0.4452.225 P6R2 1 0.385 / P7R1 1 2.145 / P7R2 1 2.145 / P8R1 1 1.135 / P8R2 11.035 / P9R1 2 4.625 4.835 P9R2 1 2.285 /

FIG. 2 and FIG. 3 illustrate a longitudinal aberration and a lateralcolor of light with wavelengths of 656 nm, 587 nm, 546 nm, 486 nm and436 nm after passing the camera optical lens 10 according to the firstembodiment, respectively. FIG. 4 illustrates a field curvature and adistortion of light with a wavelength of 546 nm after passing the cameraoptical lens 10 according to the first embodiment. In FIG. 4, a fieldcurvature S is a field curvature in a sagittal direction, and T is afield curvature in a meridional direction.

Table 13 in the following shows various values of first, second andthird embodiments and values corresponding to parameters which arespecified in the above conditions.

As shown in Table 13, the first embodiment satisfies the aboveconditions.

In this Embodiment, an entrance pupil diameter (ENPD) of the cameraoptical lens is 3.243 mm, an image height (IH) of 1.0H is 6.000 mm, afield of view (FOV) in a diagonal direction is 85.11°. Thus, the cameraoptical lens meets the design requirements of wide-angle and ultra-thin.Its on-axis and off-axis aberrations are fully corrected, therebyachieving excellent optical characteristics.

Second Embodiment

FIG. 5 shows a camera optical lens 20 of the second embodiment of thepresent disclosure, the second embodiment is basically the same as thefirst embodiment and involves symbols having the same meanings as thefirst embodiment, and only differences therebetween will be described inthe following.

The image-side of the eighth lens L8 in the paraxial region is convex.

Table 5 and Table 6 show design data of the camera optical lens 20 inthe second embodiment of the present disclosure.

TABLE 5 R d nd vd S1 ∞ d0= −0.140 R1 6.761 d1= 0.338 nd1 1.5444 v1 55.82R2 2.939 d2= 0.028 R3 2.078 d3= 0.950 nd2 1.5444 v2 55.82 R4 173.123 d4=0.166 R5 9.853 d5= 0.250 nd3 1.6359 v3 23.82 R6 4.761 d6= 0.479 R7−57.786 d7= 0.365 nd4 1.5444 v4 55.82 R8 −8.603 d8= 0.047 R9 −15.703 d9=0.213 nd5 1.6153 v5 25.94 R10 11.630 d10= 0.025 R11 32.498 d11= 1.000nd6 1.5444 v6 55.82 R12 24.896 d12= 0.283 R13 3.485 d13= 0.419 nd71.5346 v7 55.69 R14 13.179 d14= 0.979 R15 4.357 d15= 1.338 nd8 1.5661 v837.71 R16 −13.754 d16= 0.114 R17 −8.763 d17= 0.247 nd9 1.5450 v9 55.81R18 2.818 d18= 0.682 R19 ∞ d19= 0.210 ndg 1.5168 vg 64.17 R20 ∞ d20=0.771

Table 6 shows aspherical surface data of each lens of the camera opticallens 20 in the second embodiment of the present disclosure.

TABLE 6 Conic coefficient Aspheric surface coefficients k A4 A6 A8 A10A12 R1 −1.3966E+00 −9.3096E−03 9.2321E−03 −7.8166E−03 4.0479E−03−9.9530E−04 R2 −4.5429E+00 −1.0030E−01 1.4298E−01 −1.6290E−01 1.3919E−01−8.4281E−02 R3  3.0481E−01 −1.2437E−01 1.3510E−01 −1.5540E−01 1.3514E−01−8.5137E−02 R4 −3.3873E+02  9.0115E−03 −8.6152E−03   9.1337E−03−1.0615E−02   8.6508E−03 R5 −7.7036E+01  2.2796E−03 −5.3514E−03  1.2298E−02 −1.1791E−02   7.8187E−03 R6  3.0216E+00 −2.5294E−021.2327E−02 −2.5268E−03 −1.5536E−03   2.3347E−03 R7  8.1094E+01−1.7684E−02 3.5366E−03 −1.3541E−02 1.6279E−02 −1.3557E−02 R8  1.2961E+01−1.9686E−02 1.5475E−02 −2.7923E−02 2.8859E−02 −2.0011E−02 R9  7.1118E+01−2.9184E−02 7.6391E−03 −9.7531E−03 1.1877E−02 −9.4153E−03 R10−7.5234E+01 −2.4570E−02 −5.9422E−03   1.1523E−02 −9.0071E−03  4.3613E−03 R11  2.0000E+02 −1.5549E−02 −2.2914E−04   2.8538E−03−2.2171E−03   9.4445E−04 R12  9.9000E+01 −4.1222E−02 8.9755E−03−2.4090E−03 6.1263E−04 −1.2983E−04 R13 −2.1271E+00 −1.2167E−023.6721E−03 −1.3867E−03 2.6293E−04 −5.9498E−05 R14 −1.2645E+02 1.2567E−02 −1.4633E−03   2.3209E−04 −3.8603E−04   1.4020E−04 R15−3.4788E+00 −1.8564E−02 −1.3611E−03   5.0378E−04 −5.1917E−05 −4.9801E−06 R16 −5.0801E+00 −8.4650E−03 −4.2939E−03   1.3451E−03−2.4514E−04   2.8179E−05 R17 −3.6481E+00 −2.3655E−02 2.4541E−03−9.9854E−05 3.2131E−06 −1.4030E−07 R18 −1.6413E+00 −2.4412E−023.2201E−03 −2.6104E−04 1.3328E−05 −4.1545E−07 Conic coefficient Asphericsurface coefficients k A14 A16 A18 A20 R1 −1.3966E+00 −8.2513E−05 1.2748E−04 −3.2820E−05 2.9520E−06 R2 −4.5429E+00 3.4731E−02 −9.2005E−03  1.4064E−03 −9.3966E−05  R3  3.0481E−01 3.6720E−02 −1.0255E−02  1.6645E−03 −1.1985E−04  R4 −3.3873E+02 −4.4535E−03  1.4055E−03−2.5379E−04 2.0255E−05 R5 −7.7036E+01 −3.3192E−03  8.5775E−04−1.2553E−04 8.1914E−06 R6  3.0216E+00 −1.4211E−03  4.9003E−04−9.2315E−05 7.3432E−06 R7  8.1094E+01 7.6177E−03 −2.6657E−03  5.2874E−04 −4.4957E−05  R8  1.2961E+01 9.5338E−03 −2.9161E−03  5.0875E−04 −3.7809E−05  R9  7.1118E+01 4.8882E−03 −1.5773E−03  2.8015E−04 −2.0517E−05  R10 −7.5234E+01 −1.3141E−03  2.3706E−04−2.3099E−05 9.3083E−07 R11  2.0000E+02 −2.2705E−04  3.1376E−05−2.3573E−06 7.5368E−08 R12  9.9000E+01 1.8918E−05 −1.6053E−06  7.6629E−08 −1.8626E−09  R13 −2.1271E+00 1.4740E−05 −2.3678E−06  1.9323E−07 −6.0886E−09  R14 −1.2645E+02 −2.4395E−05  2.3054E−06−1.1345E−07 2.2769E−09 R15 −3.4788E+00 1.2280E−06 −2.5444E−08 −6.5673E−09 3.3689E−10 R16 −5.0801E+00 −2.0106E−06  8.8127E−08−2.2343E−09 2.5718E−11 R17 −3.6481E+00 2.7723E−10 3.6163E−10 −1.4625E−111.7727E−13 R18 −1.6413E+00 5.4153E−09 8.9599E−11 −3.8415E−12 3.4379E−14

Table 7 and table 8 show design data of inflexion points and arrestpoints of each lens of the camera optical lens 20 lens according to thesecond embodiment of the present disclosure.

TABLE 7 Number(s) Inflexion Inflexion Inflexion of inflexion point pointpoint points position 1 position 2 position 3 P1R1 0 / / / P1R2 0 / / /P2R1 0 / / / P2R2 2 1.115 1.695 / P3R1 0 / / / P3R2 0 / / / P4R1 1 1.525/ / P4R2 1 1.545 / / P5R1 0 / / / P5R2 2 0.485 1.805 / P6R1 2 0.4251.635 / P6R2 2 0.295 2.185 / P7R1 1 1.405 / / P7R2 2 1.545 3.075 / P8R12 0.915 3.225 / P8R2 1 3.385 / / P9R1 1 2.575 / / P9R2 3 1.355 4.9155.115

TABLE 8 Number of Arrest point Arrest point arrest points position 1position 2 P1R1 0 / / P1R2 0 / / P2R1 0 / / P2R2 1 1.475 / P3R1 0 / /P3R2 0 / / P4R1 0 / / P4R2 0 / / P5R1 0 / / P5R2 1 0.855 / P6R1 2 0.7451.995 P6R2 1 0.525 / P7R1 1 2.145 / P7R2 1 2.165 / P8R1 1 1.595 / P8R2 0/ / P9R1 0 / / P9R2 1 3.795 /

FIG. 6 and FIG. 7 illustrate a longitudinal aberration and a lateralcolor of light with wavelengths of 656 nm, 587 nm, 546 nm, 486 nm and436 nm after passing the camera optical lens 20 according to the secondembodiment. FIG. 8 illustrates a field curvature and a distortion oflight with a wavelength of 546 nm after passing the camera optical lens20 according to the second embodiment. A field curvature S in FIG. 8 isa field curvature in a sagittal direction, and T is a field curvature ina meridian direction.

As shown in Table 13, the second embodiment satisfies the aboveconditions.

In this embodiment, an entrance pupil diameter (ENPD) of the cameraoptical lens 20 is 3.215 mm, an image height (IH) of 1.0H is 6.000 mm,and a field of view (FOV) in a diagonal direction is 85.30°. Thus, thecamera optical lens 20 meets the design requirements of wide-angle andultra-thin. Its on-axis and off-axis aberrations are fully corrected,thereby achieving excellent optical characteristics.

Third Embodiment

FIG. 9 shows a camera optical lens 30 of the third embodiment of thepresent disclosure, the third embodiment is basically the same as thefirst embodiment and involves symbols having the same meanings as thefirst embodiment, and only differences therebetween will be described inthe following.

The image-side surface of the second lens L2 is convex in the paraxialregion, the object-side surface of the fourth lens L4 is convex in theparaxial region, and the image-side surface of the eighth lens L8 isconvex in the paraxial region.

Table 9 and Table 10 show design data of the camera optical lens 30 inthe embodiment of the present disclosure.

TABLE 9 R d nd vd S1 ∞ d0= −0.006 R1 43.337 d1= 0.175 nd1 1.5444 v155.82 R2 2.588 d2= 0.023 R3 2.088 d3= 0.645 nd2 1.5444 v2 55.82 R4−13.066 d4= 0.676 R5 9.632 d5= 0.146 nd3 1.6359 v3 23.82 R6 5.543 d6=0.299 R7 17.713 d7= 0.225 nd4 1.5444 v4 55.82 R8 −14.498 d8= 0.144 R9−15.863 d9= 0.444 nd5 1.6153 v5 25.94 R10 10.414 d10= 0.244 R11 36.517d11= 0.937 nd6 1.5444 v6 55.82 R12 26.983 d12= 0.313 R13 2.930 d13=0.438 nd7 1.5346 v7 55.69 R14 16.183 d14= 1.393 R15 5.531 d15= 1.080 nd81.5661 v8 37.71 R16 −15.057 d16= 0.270 R17 −5.360 d17= 0.487 nd9 1.5450v9 55.81 R18 3.146 d18= 0.710 R19 ∞ d19= 0.210 ndg 1.5168 vg 64.17 R20 ∞d20= 0.835

Table 10 shows aspherical surface data of each lens of the cameraoptical lens 30 in the third embodiment of the present disclosure.

TABLE 10 Conic coefficient Aspheric surface coefficients k A4 A6 A8 A10A12 R1 −1.3966E+00 −9.3096E−03 9.2321E−03 −7.8166E−03 4.0479E−03−9.9530E−04 R2 −4.5429E+00 −1.0030E−01 1.4298E−01 −1.6290E−01 1.3919E−01−8.4281E−02 R3  3.0481E−01 −1.2437E−01 1.3510E−01 −1.5540E−01 1.3514E−01−8.5137E−02 R4 −3.3873E+02  9.0115E−03 −8.6152E−03   9.1337E−03−1.0615E−02   8.6508E−03 R5 −7.7036E+01  2.2796E−03 −5.3514E−03  1.2298E−02 −1.1791E−02   7.8187E−03 R6  3.0216E+00 −2.5294E−021.2327E−02 −2.5268E−03 −1.5536E−03   2.3347E−03 R7  8.1094E+01−1.7684E−02 3.5366E−03 −1.3541E−02 1.6279E−02 −1.3557E−02 R8  1.2961E+01−1.9686E−02 1.5475E−02 −2.7923E−02 2.8859E−02 −2.0011E−02 R9  7.1118E+01−2.9184E−02 7.6391E−03 −9.7531E−03 1.1877E−02 −9.4153E−03 R10−7.5234E+01 −2.4570E−02 −5.9422E−03   1.1523E−02 −9.0071E−03  4.3613E−03 R11  2.0000E+02 −1.5549E−02 −2.2914E−04   2.8538E−03−2.2171E−03   9.4445E−04 R12  9.9000E+01 −4.1222E−02 8.9755E−03−2.4090E−03 6.1263E−04 −1.2983E−04 R13 −2.1271E+00 −1.2167E−023.6721E−03 −1.3867E−03 2.6293E−04 −5.9498E−05 R14 −1.2645E+02 1.2567E−02 −1.4633E−03   2.3209E−04 −3.8603E−04   1.4020E−04 R15−3.4788E+00 −1.8564E−02 −1.3611E−03   5.0378E−04 −5.1917E−05 −4.9801E−06 R16 −5.0801E+00 −8.4650E−03 −4.2939E−03   1.3451E−03−2.4514E−04   2.8179E−05 R17 −3.6481E+00 −2.3655E−02 2.4541E−03−9.9854E−05 3.2131E−06 −1.4030E−07 R18 −1.6413E+00 −2.4412E−023.2201E−03 −2.6104E−04 1.3328E−05 −4.1545E−07 Conic coefficient Asphericsurface coefficients k A14 A16 A18 A20 R1 −1.3966E+00 −8.2513E−05 1.2748E−04 −3.2820E−05 2.9520E−06 R2 −4.5429E+00 3.4731E−02 −9.2005E−03  1.4064E−03 −9.3966E−05  R3  3.0481E−01 3.6720E−02 −1.0255E−02  1.6645E−03 −1.1985E−04  R4 −3.3873E+02 −4.4535E−03  1.4055E−03−2.5379E−04 2.0255E−05 R5 −7.7036E+01 −3.3192E−03  8.5775E−04−1.2553E−04 8.1914E−06 R6  3.0216E+00 −1.4211E−03  4.9003E−04−9.2315E−05 7.3432E−06 R7  8.1094E+01 7.6177E−03 −2.6657E−03  5.2874E−04 −4.4957E−05  R8  1.2961E+01 9.5338E−03 −2.9161E−03  5.0875E−04 −3.7809E−05  R9  7.1118E+01 4.8882E−03 −1.5773E−03  2.8015E−04 −2.0517E−05  R10 −7.5234E+01 −1.3141E−03  2.3706E−04−2.3099E−05 9.3083E−07 R11  2.0000E+02 −2.2705E−04  3.1376E−05−2.3573E−06 7.5368E−08 R12  9.9000E+01 1.8918E−05 −1.6053E−06  7.6629E−08 −1.8626E−09  R13 −2.1271E+00 1.4740E−05 −2.3678E−06  1.9323E−07 −6.0886E−09  R14 −1.2645E+02 −2.4395E−05  2.3054E−06−1.1345E−07 2.2769E−09 R15 −3.4788E+00 1.2280E−06 −2.5444E−08 −6.5673E−09 3.3689E−10 R16 −5.0801E+00 −2.0106E−06  8.8127E−08−2.2343E−09 2.5718E−11 R17 −3.6481E+00 2.7723E−10 3.6163E−10 −1.4625E−111.7727E−13 R18 −1.6413E+00 5.4153E−09 8.9599E−11 −3.8415E−12 3.4379E−14

Table 11 and Table 12 show design data inflexion points and arrestpoints of the respective lenses in the camera optical lens 30 accordingto the third embodiment of the present disclosure.

TABLE 11 Number(s) Inflexion Inflexion of inflexion point point pointsposition 1 position 2 P1R1 1 0.725 / P1R2 0 / / P2R1 1 1.565 / P2R2 11.695 / P3R1 0 / / P3R2 0 / / P4R1 2 0.545 1.475 P4R2 1 1.505 / P5R1 0 // P5R2 2 0.505 1.805 P6R1 2 0.395 1.665 P6R2 2 0.285 2.245 P7R1 1 1.435/ P7R2 2 1.555 3.075 P8R1 2 0.835 3.225 P8R2 1 3.385 / P9R1 1 2.585 /P9R2 2 1.275 4.915

TABLE 12 Number of Arrest point Arrest point arrest points position 1position 2 P1R1 0 / / P1R2 0 / / P2R1 0 / / P2R2 0 / / P3R1 0 / / P3R2 0/ / P4R1 2 0.885 1.675 P4R2 0 / / P5R1 0 / / P5R2 1 0.885 / P6R1 2 0.6952.075 P6R2 1 0.495 / P7R1 1 2.205 / P7R2 1 2.155 / P8R1 1 1.455 / P8R2 0/ / P9R1 0 / / P9R2 1 3.655 /

FIG. 10 and FIG. 11 illustrate a longitudinal aberration and a lateralcolor of light with wavelengths of 656 nm, 587 nm, 546 nm, 486 nm and436 nm after passing the camera optical lens 30 according to the thirdembodiment, respectively. FIG. 12 illustrates a field curvature and adistortion of light with a wavelength of 546 nm after passing the cameraoptical lens 30 according to the third embodiment. In FIG. 12, a fieldcurvature S is a field curvature in a sagittal direction, and T is afield curvature in a meridional direction.

Table 13 in the following lists values corresponding to the respectiveconditions in the embodiment according to the above conditions.Obviously, the camera optical lens 30 in the embodiment satisfies theabove conditions.

In this embodiment, an entrance pupil diameter (ENPD) of the cameraoptical lens 30 is 3.134 mm, an image height (IH) of 1.0H is 6.000 mm,and a field of view (FOV) in a diagonal direction is 81.82°. Thus, thecamera optical lens 30 meets the design requirements of wide-angle andultra-thin. Its on-axis and off-axis aberrations are fully corrected,thereby achieving excellent optical characteristics.

TABLE 13 Parameters and Fist Second Third conditions embodimentembodiment embodiment f1/f −1.79 −1.53 −0.73 d15/d16 2.00 11.74 4.00 f6.487 6.430 6.895 f1 −11.638 −9.814 −5.043 f2 3.949 3.839 3.343 f3−14.026 −14.625 −20.624 f4 22.972 18.439 14.618 f5 −16.257 −10.729−10.061 f6 −166.721 −204.158 −195.845 f7 7.915 8.692 6.589 f8 34.1475.968 7.238 f9 −5.183 −3.867 −3.550 f12 6.146 6.472 9.498 FNO 2.00 2.002.20 TTL 8.655 8.904 9.694 IH 6.000 6.000 6.000 FOV 85.11° 85.30° 81.82°

It can be appreciated by one having ordinary skill in the art that thedescription above is only embodiments of the present disclosure. Inpractice, one having ordinary skill in the art can make variousmodifications to these embodiments in forms and details withoutdeparting from the scope of the present disclosure.

What is claimed is:
 1. A camera optical lens, comprising nine lenses,the nine lenses from an object side to an image side being: a first lenswith a negative refractive power; a second lens with a positiverefractive power; a third lens with a negative refractive power; afourth lens with a positive refractive power; a fifth lens with anegative refractive power; a sixth lens with a negative refractivepower; a seventh lens with a positive refractive power; an eighth lenswith a positive refractive power; and an ninth lens with a negativerefractive power; wherein the camera optical lens satisfies followingconditions:−1.80≤f1/f≤−0.70; 2.00≤d15/d16≤12.00; where f denotes a focal length ofthe camera optical lens; f1 denotes a focal length of the first lens;d15 denotes an on-axis thickness of the eighth lens; d16 denotes anon-axis distance from an image-side surface of the eighth lens to anobject-side surface of the ninth lens.
 2. The camera optical lensaccording to claim 1, further satisfying following conditions:−3.50≤R17/R18≤−1.50; where R17 denotes a central curvature radius of anobject-side surface of the ninth lens; R18 denotes a central curvatureradius of an image-side surface of the ninth lens.
 3. The camera opticallens according to claim 1, further satisfying following conditions:0.56≤(R1+R2)/(R1−R2)≤5.43; 0.01≤d1/TTL≤0.06; where R1 denotes a centralcurvature radius of an object-side surface of the first lens; R2 denotesa central curvature radius of an image-side surface of the first lens;d1 denotes an on-axis thickness of the first lens; TTL denotes a totaltrack length of the camera optical lens.
 4. The camera optical lensaccording to claim 1, further satisfying following conditions:0.24≤f2/f≤0.91; −2.19≤(R3+R4)/(R3−R4)≤−0.48; 0.03≤d3/TTL≤0.16; where f2denotes a focal length of the second lens; R3 denotes a centralcurvature radius of an object-side surface of the second lens; R4denotes a central curvature radius of an image-side surface of thesecond lens; d3 denotes an on-axis thickness of the second lens; TTLdenotes a total track length of the camera optical lens.
 5. The cameraoptical lens according to claim 1, further satisfying followingconditions:−5.98≤f3/f≤−1.44; 1.43≤(R5+R6)/(R5−R6)≤5.57; 0.01≤d5/TTL≤0.04; where f3denotes a focal length of the third lens; R5 denotes a central curvatureradius of an object-side surface of the third lens; R6 denotes a centralcurvature radius of an image-side surface of the third lens; d5 denotesan on-axis thickness of the third lens; TTL denotes a total track lengthof the camera optical lens.
 6. The camera optical lens according toclaim 1, further satisfying following conditions:1.06≤f4/f≤5.31; 0.05≤(R7+R8)/(R7−R8)≤3.87; 0.01≤d7/TTL≤0.08; where f4denotes a focal length of the fourth lens; R7 denotes a centralcurvature radius of an object-side surface of the fourth lens; R8denotes a central curvature radius of an image-side surface of thefourth lens; d7 denotes an on-axis thickness of the fourth lens; TTLdenotes a total track length of the camera optical lens.
 7. The cameraoptical lens according to claim 1, further satisfying followingconditions:−5.01≤f5/f≤−0.97; −0.43≤(R9+R10)/(R9−R10)≤0.31; 0.01≤d9/TTL≤0.07; wheref5 denotes a focal length of the fifth lens; R9 denotes a centralcurvature radius of an object-side surface of the fifth lens; R10denotes a central curvature radius of an image-side surface of the fifthlens; d9 denotes an on-axis thickness of the fifth lens; TTL denotes atotal track length of the camera optical lens.
 8. The camera opticallens according to claim 1, further satisfying following conditions:−63.50≤f6/f≤−17.13; 1.59≤(R11+R12)/(R11−R12)≤11.32; 0.05≤d11/TTL≤0.18;where f6 denotes a focal length of the sixth lens; R11 denotes a centralcurvature radius of an object-side surface of the sixth lens; R12denotes a central curvature radius of an image-side surface of the sixthlens; d11 denotes an on-axis thickness of the sixth lens; TTL denotes atotal track length of the camera optical lens.
 9. The camera opticallens according to claim 1, further satisfying following conditions:0.48≤f7/f≤2.03; −3.44≤(R13+R14)/(R13−R14)≤−0.96; 0.02≤d13/TTL≤0.09;where f7 denotes a focal length of the seventh lens; R13 denotes acentral curvature radius of an object-side surface of the seventh lens;R14 denotes a central curvature radius of an image-side surface of theseventh lens; d13 denotes an on-axis thickness of the seventh lens; TTLdenotes a total track length of the camera optical lens.
 10. The cameraoptical lens according to claim 1, further satisfying followingconditions:0.46≤f8/f≤7.90; −6.50≤(R15+R16)/(R15−R16)≤−0.31; 0.06≤d15/TTL≤0.23;where f8 denotes a focal length of the eighth lens; R15 denotes acentral curvature radius of an object-side surface of the eighth lens;R16 denotes a central curvature radius of the image-side surface of theeighth lens; TTL denotes a total track length of the camera opticallens.
 11. The camera optical lens according to claim 1, furthersatisfying following conditions:−1.60≤f9/f≤−0.34; 0.11≤(R17+R18)/(R17−R18)≤0.77; 0.01≤d17/TTL≤0.08;where f9 denotes a focal length of the ninth lens; R17 denotes a centralcurvature radius of the object-side surface of the ninth lens; R18denotes a central curvature radius of an image-side surface of the ninthlens; d17 denotes an on-axis thickness of the ninth lens; TTL denotes atotal track length of the camera optical lens.